Adaptive multipath control within an electric vehicle battery pack

Abstract

Embodiments for adaptive multipath control within an electric vehicle battery pack are disclosed. In a particular embodiment, a method for adaptive multipath control includes modifying at least one of: one or more transmission properties and one or more reflection properties of a metasurface of a module measurement system of a battery management system. In this embodiment, the metasurface is proximate to an antenna of the module measurement system. The method also includes transmitting, via the antenna of the module measurement system, battery sensor data.

What is claimed is: 
     
         1 . A method for adaptive multipath control within an electric vehicle battery pack, the method comprising:
 modifying at least one of: one or more transmission properties and one or more reflection properties of a metasurface of a module measurement system of a battery management system, wherein the metasurface is proximate to an antenna of the module measurement system; and   transmitting, via the antenna of the module measurement system, battery sensor data.   
     
     
         2 . The method of  claim 1 , wherein modifying at least one of: the one or more transmission properties and the one or more reflection properties of the metasurface comprises modifying a transmission magnitude and a transmission phase. 
     
     
         3 . The method of  claim 2 , wherein the transmission magnitude and the transmission phase are modified by varying a capacitance of a varactor diode coupled to the metasurface. 
     
     
         4 . The method of  claim 1 , wherein modifying at least one of: the one or more transmission properties and the one or more reflection properties of the metasurface comprises modifying a reflection magnitude and a reflection phase. 
     
     
         5 . The method of  claim 4 , wherein the reflection magnitude and the reflection phase are modified by modulating a PIN diode coupled to the metasurface. 
     
     
         6 . The method of  claim 1 , wherein the metasurface comprises an electro band-gap material comprising a plurality of unit cells. 
     
     
         7 . The method of  claim 1 , wherein modifying at least one of the one or more transmission properties and the one or more reflection properties of the metasurface is performed in response to a failed transmission by the module measurement system. 
     
     
         8 . The method of  claim 1 , wherein modifying at least one of: the one or more transmission properties and the one or more reflection properties of the metasurface is performed based on a predefined modulation pattern. 
     
     
         9 . A battery management system for adaptive multipath control within an electric vehicle battery pack, comprising:
 a wireless network controller; and   a module measurement system configured to perform steps comprising:
 modifying at least one of: one or more transmission properties and one or more reflection properties of a metasurface proximate to an antenna; and 
 transmitting, via the antenna to the wireless network controller, battery sensor data. 
   
     
     
         10 . The battery management system of  claim 9 , wherein modifying at least one of: the one or more transmission properties and the one or more reflection properties of the metasurface comprises modifying a transmission magnitude and transmission phase. 
     
     
         11 . The battery management system of  claim 10 , wherein the transmission magnitude and the transmission phase are modified by varying a capacitance of a varactor diode coupled to the metasurface. 
     
     
         12 . The battery management system of  claim 9 , wherein modifying at least one of one or more transmission properties and one or more reflection properties of the metasurface comprises modifying a reflection magnitude and reflection phase. 
     
     
         13 . The battery management system of  claim 12 , wherein the reflection magnitude and the reflection phase are modified by modulating a PIN diode coupled to the metasurface. 
     
     
         14 . The battery management system of  claim 9 , wherein the metasurface comprises an electro band-gap material comprising a plurality of unit cells. 
     
     
         15 . The battery management system of  claim 9 , wherein modifying at least one of the one or more transmission properties and the one or more reflection properties of the metasurface is performed in response to a failed transmission by the module measurement system. 
     
     
         16 . The battery management system of  claim 9 , wherein modifying at least one of the one or more transmission properties and the one or more reflection properties of the metasurface is performed based on a predefined modulation pattern. 
     
     
         17 . An apparatus for adaptive multipath control within an electric vehicle battery pack, the apparatus comprising a computer processor, a computer memory operatively coupled to the computer processor, the computer memory having disposed within it computer program instructions that, when executed by the computer processor, cause the apparatus to carry out the steps of:
 modifying at least one of one or more transmission properties and one or more reflection properties of a metasurface of a module measurement system of a battery management system, wherein the metasurface is proximate to an antenna of the module measurement system; and   transmitting, via the antenna of the module measurement system, battery sensor data.   
     
     
         18 . The apparatus of  claim 17 , wherein modifying at least one of: the one or more transmission properties and the one or more reflection properties of the metasurface comprises modifying a transmission magnitude and transmission phase. 
     
     
         19 . The apparatus of  claim 18 , wherein the transmission magnitude and the transmission phase is modified by varying a capacitance of a varactor diode coupled to the metasurface. 
     
     
         20 . The apparatus of  claim 17 , wherein modifying at least one of the one or more transmission properties and the one or more reflection properties of the metasurface comprises modifying a reflection magnitude and a reflection phase.